Question 665817


{{{-10y^2+31y-15}}}.....replace {{{31y}}} with  {{{6y+25y}}}

{{{-10y^2+6y+25y-15}}}...group

{{{(-10y^2+6y)+(25y-15)}}}

{{{-2y(5y-3)+5(5y-3)}}}

{{{(-2y+5)(5y-3)}}}